Get Start

$ mkdir Greeting
$ cd Greeting
$ yarn init  # 包管理
$ yarn add --dev hardhat
$ npx hardhat # 初始化项目
$ npx hardhat compile  # 编译
$ yarn add @openzeppelin/[email protected] # 安装OpenZeppelin(指定版本)

Command-line replace and completion

After doing this running hh will be equivalent to running npx hardhat. For example, instead of running npx hardhat compile you can run hh compile.

$ npx hardhat test
# equivalent to
$ hh test

list_function 外部检查函数生成

在项目的根目录下复制工具文件 list_functions ，然后在根目录下执行 ./list_functions 合约存放地址

$ ./list_functions -h   # help

例如：

liuxi@liuxideMacBook-Pro PNB % ./list_functions contracts/PinkBNB.sol
zsh: permission denied: ./list_functions
# 解决权限问题
liuxi@liuxideMacBook-Pro PNB % chmod +x ./list_functions
liuxi@liuxideMacBook-Pro PNB % ./list_functions contracts/PinkBNB.sol
Success! The result is written to PinkBNB.sol.md
# 被写入到根目录下了

Hardhat 常用功能命令

npx hardhat flatten contracts/Foo.sol > Flattened.sol # 导出单一文件命令

OpenZeppelin - Solidity 版本对应关系

OpenZeppelin Doc: https://docs.openzeppelin.com/contracts/4.x/

Solidity	OpenZeppelin
0.5.x	2.3.x - 2.5.x
0.6.x	3.0.x - 3.1.x 或 3.4
0.7.x	3.2.x - 3.3.x 或 3.4
0.8.x	4.0.x - 4.5.x

OpenZeppelin v3.4 兼容 sol v0.6 和 sol v0.7